#app {
    position: relative;
    width: 100%;
    min-height: 100%;
    box-sizing: border-box;
}

._page{
    background-color: #fff;
    min-height: 100vh;
    box-sizing: border-box;
    overflow-y: auto;
    padding: 10px;
}

@media screen and (max-width: 480px) {
    ._page{
        width: 100vw;
        padding: 0;
    }
}
